According to institute like World Health Organization (WHO) the air indoors is worse than outdoors! This days in urban cites like Bangkok the PM 2.5 (Particle Matter) have periodic time a high unhealthy level of PM 2.5. This air we don’t want to take in to our home and if we have closed windows and no fresh air coming into our homes the indoor air will quick be unhealthy. Air pollution levels remain dangerously high in many parts of the world. New data from WHO shows that 9 out of 10 people breathe air containing high levels of pollutants. So, what can you do to make your indoor air healthier and better? One good way is to create ventilation in your home, ventilation means that you create an air flow in your home and change the air inside. A good rule is to change it 1 time every 2ndhour (0.5 air change per hour). How can you do that? In this article I will take up 2 ways to do it but if you are interested to know more you can read this article https://ventpro.co.th/whole-house-mechanical-ventilation/ The air we take in from outside needs to be filtrated so for example we don’t take in the polluted air with PM 2.5. One way to do that is to use Passive Wall Vents (make up air inlets) that have a PM 2.5 filter. The passive wall vents with PM2.5 flimmer filter you install in your bedrooms, living room and common area. Normally it is one in bedroom area as one passive wall vent with PM 2.5 flimmer filter can take in air for 15-20 m2 so in bigger rooms like your living room you need to install more. To this you need an exhaust fan that you install usually in bathrooms. The exhaust fan operates either continuously or intermittently to exhaust stale air and moisture generated in those rooms. This strategy creates a modest negative pressure in your home, and that pulls in fresh air from the passive wall vents. An advantage of this strategy is simplicity and low cost. TH means it have sensor for humidity (H) and timer (T). When humidity rise example when you take a shower the fan starts automatic and will not turn off until the humidity level is down to your settings. Timer enables the fan operation within 2-30 minutes after the exhaust fan is switch off. Have a continuous operation at low speed and low energy, when ex humidity rise it goes up to full speed. This to exhaust the humid air as quick as possible and then down to load speed again. Check out Ventpro exhaust fans models here... Balanced ventilation with energy recovery A balanced ventilation system has two fans: one bringing outside air into the building, and the other exhausting stale interior air. It filters both air streams, example incoming air is filtered with a G4 and a F7 filter and exhausting air with an G4 filter. This prevent example PM2.5 entering your home. You get fresh and clean air in your home. In balanced ERV ventilation systems, heat and moisture are exchanged between the two airstreams (the two air streams don't mix), reducing the heating and cooling loads caused by outside ventilation air. ERV deliver fresh air through duct pipes to spaces that are most lived in (living room, bedrooms, etc.) and exhaust indoor air from places where moisture or pollutants are generated (bathrooms, kitchen, laundry room). This is a great way to ventilate a home. It's also more expensive than the ones above but you get a controlled airflow for your home. If budgets allow, going with balanced ventilation is recommended. Contact us and we will help you out! Links to read more about air pollution WHO South East Asia Breathelife2030 – solutions in cities around the world
Ventilation keeps oxygen levels inside the building adequate and extracts harmful fumes and odors outside. Incoming air is always filtered through high quality filters so that indoor living is healthy and comfortable. With intelligent ventilation you guarantee fresh and healthy air, save energy and prevent problematic moisture. THIS IS HOW IT WORKS Extract air is removed from the apartment & house through the extract valves and ducting to the ventilation unit. The extract air is taken from those parts of the apartment that have the highest amount of substances harmful to air quality such as the toilet, kitchen, washroom and bathroom. The air continues inside the unit to the built-in enthalpy exchanger which recovers the cold / heat energy from the extract air, passes the extract air fan and is sent outside as exhaust air. Simultaneously fresh and outside air enters the unit, passing through filters that remove all harmful substances, and continues to the enthalpy exchanger where it is cooled down / heated up by the recovered energy. During summer (Warm climate), the incoming air is pre-cooled if the house is equipped with an air cooling system. The energy recovery core at the center of the unit transfers cold / heat and moisture from the incoming air to the outgoing air that was cooled and dried by the building's air conditioner. Finally, it is distributed through supply air ducts and diffusers to the apartments supply air. In the olden days we simply opened the window for fresh air. But this way we lost a significant amount of energy and it didn’t gave a controlled balanced air flow and today the outdoor air is also polluted. With intelligent energy recovery ventilation systems, you can recover up to 90 percent of the exhaust air cold / heat energy to use to cold / heat the incoming fresh air. Intelligent ventilation does not waste energy but re-uses it to create free cooling / heating or passive cooling and saves household energy costs. Inadequate and unbalanced ventilation can lead to increased moisture levels that provide a habitat for harmful microbes and molds. Intelligent ventilation extracts excess humidity from indoor air and makes sure that uncontrolled pressure differences don’t create a risk of moisture in the building envelope. Using VentPro ERV system provides balanced filtered ventilation throughout the home that does not upset any gas or fossil fuel appliance or system. You can breathe easy knowing the air in your home is clean and fresh. Check out our ERV products here....and if you need any help or have want us to design a unit for you don't hesitate to contact us.